Cl agaynes, agayneʒ
'against, upon'(Modern English against)
A native formation on agayn + adverbial -es from the OE str. masc. and neut. gen. ending.
Proposed ON Etymon (OIcel representative)
(í) gegn 'in opposition, against, in return'
(ONP gegn (1) (sb.))
Other Scandinavian Reflexes
Far ígen, Icel gegn, Dan igen, OSw gen
on-gegn, on-gēan 'against'; cp. ongegnes 'against'
Phonological and morphological markers
As with agayn, spellings reliably representing /ɡ/ are rare in the South and West until c. 1400, but are normal in the Chaucer citations in MED and become increasingly frequent in southern texts thereafter.
Occurrences in the Gersum Corpus
Pe 79; Cl 611, 1711